Support assembly for roller including roller body and support shaft
US6816692B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2003 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | May 21, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0896
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Gear (52) and resin body (2) supported on shaft (1) and between frame members (14a) and (14b) are protected from contacting a frame member. Frame (14a) has a partial hole (22) with an opening (24) and a cavity (26), which is open at the hole (22) and on the side toward the opening (24). A bearing (18) has a inner body (30) which internally is partially circular with diameter substantially the same as opening (22). The outer portion of body (30) forms an outwardly extending nub (34). Wall (36) extends across body (30). The part (38) of bearing 18 opposite body 30 has an extended part (38a) to serve as an electrical contact. A shaft end (Sa) past a circular ledge (3a) is supported by bearing (18). The nub (34) fits in the cavity (26) and the wall (36) defines the proper position of rotation of the bearing. This protects gear (52) from being dislodged from its position on shaft (1). Where the resin body (2) is for electrophotographic developing, toner carried by the body (2) is not subject to effects from the body contacting a frame element or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.